UMTS900 Refarming Deployment Strategy V1.0

HUAWEI TECHNOLOGIES CO., LTD.

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Huawei UMTS900M Refarming Deployment Strategy and RNP


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Agenda• UMTS900 Deployment Strategy

• Huawei Refarming Solution

• 2G Traffic Transfer Strategy

• GSM900 Frequency re-plan and performance

• Inter-RAT Operation Solution

• Antenna Solution

• UMTS Refarming Application

HUAWEI TECHNOLOGIES CO., LTD. Page 4Huawei Confidential

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Why Refarming? Demands from Data Growth

Data services offset the falls of voice revenue and becomes the key driver to growth

• Voice ARPU falls in 4 countries

Coverage Requirement

• No 3G service in rural area• Coverage gap between 2.1GHz and 900MHz

ServiceRequirement

• Poor or No data service in rural area (inc. fixed data access)

CapacityRequirement

• 2.1GHz spectrum insufficient for 3G capacity

CostRequirement

• TCO (UMTS 900MHz) << TCO (UMTS 2.1GHz)

EvolutionRequirement

• partial 900MHz frequencies spared as GSM subscribers moving to UMTS gradually

• UMTS grows as GSM turns down





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Refarming Get Better Network on Lower Cost

Cell Coverage Comparison

Radio planning U900 vs. U2100: about 6dB better link budget in U900, Cell Coverage of U900 2.5~3 times larger than U2100

Radio planning U900 vs. G900: Link budget +6-9dB, Better receiver sensitivity Capacity planning: Co-site for higher capacity sharing, 50% fewer sites with U900 than U2100





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Feasibility Analysis of UMTS900 Refarming

Ch

alle

ng

es&

So

luti

on

Industry Maturity ( Product and terminal industry)

License Permission on UMTS900

SpectrumAvailability

TechnicalFeasibility

Voice Migration

In

du

stry

C

hai

n

• Configurable Band width of UMTS carrier

•More Valuable spectrum left to GSM retained

•frequency allocation

•GU adjacent frequency interference impact

•Inter-RAT Operation

•Migration of existing GSM traffic•TFR Solution•Evolution from2G to 3G

Deployment Strategy and RNP

CostAffordability

• co-site• co-antenna• co-cabinet• co-accessories• co-transmission





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Huawei, Major Contributor to Refarming Industry

Trial

Deployment

Enhancement

Phase

2

• Leader in commercialization - Optus, Australia - SFR, France - VDF, Romania - Teliasonera, Finland - AIS, Thailand, etc. • 1st Tighter Frequency Reuse• 1st Single-RAN refarming• 1st antenna sharing

• Pioneer for technical trials - Orange, France - Proximus, Belguim - Globe, Bulgaria, etc. • 1st verify “Buffer Zone” theory• 1st test in-build U900 performance• 1st verify negligent impact to G900P

hase

1

Phase

3

• 1st to deploy G/U SDR850MHz and SDR900MHz • 1st to deploy U900 on 4.2MHz Bandwidth • 1st to deploy Tighter Frequency Reuse





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Typical Deployment Strategy for Refarming

No 3G service yet anywhere No 2.1Ghz spectrum Sufficient 900Mhz spectrum for networ

k-wide refarming

No UMTS service coverage yet voice traffic is low, easy to

release frequencies for UMTS Poor or No fixed broadband

Indoor coverage is not good Blind spots in dense urban Frequent handover between UMTS

2.1Ghz and GSM 900Mhz due to

coverage quality difference

Extend 3G Coverage In

Sub-urban & Rural

Extend 3G Coverage In

Sub-urban & Rural

Initial 3G Roll-out In

All areas

Initial 3G Roll-out In

All areas

Improve 3G Coveragein

Urban area


Urban area

U900

U2100





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• UMTS2100 for Urban coverage

• UMTS900 refarming for Suburban and Rural coverage

Extend 3G Coverage in

Suburban & Rural

Extend 3G Coverage in

Suburban & Rural

Network character No UMTS coverage yet low voice traffic, easy to release

frequencies for UMTS Poor or no data service

Typical UMTS900 Deployment Scenarios

RNP Focus on Coverage Requirement Service Requirement Cost Requirement





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• UMTS2100 for Urban coverage

• UMTS900 refarming for urban coverage and capacity



Urban areaUrban area


Urban areaUrban area

Network character Indoor coverage not good Blind spots in Dense Urban Capacity supplementary for

UMTS 2.1GHz

RNP Focus on: Coverage Requirement Capacity Requirement





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Initial 3G Roll-out in

All areas All areas

Initial 3G Roll-out in

All areas All areas

Network character No 3G service yet anywhere No 2.1GHz spectrum Sufficient 900MHz spectrum for

network-wide refarming

RNP Focus on Coverage Requirement Cost Requirement


• U2100 is mainly covered in the urban and core towns

• Refarming the GSM900 all over the network


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• Co-Antenna Solution






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Flexible Huawei UMTS Refarming Solution

Configurable Bandwidth of UMTS carrier

Flexible Between 4.2MHz and 5MHz from RAN Release12.0 with 0.1MHz steps for both downlink and uplink Efficiently suitable for 850,900,1700,1800 and 1900MHz frequency UU4.2M solution （ two adjacent 4.2M UMTS carriers ） is ready from SRAN releas3.0 3.8MHz solution can be designed for a network according to actual conditions.

More valuable spectrum left to GSM use

GSMGSM

guard

UMTS





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Flexible Huawei UMTS Refarming Solution

Sandwich frequency solution Sandwich allocation flexibly puts U900 carrier i

nto the proper spectrum location based on the UU solution and interference consideration with other operators.

Edge allocation solution Edge allocation solution has lower frequency u

tilization since the more frequency guard bandwidth shall be reserved to avoid the risk.

Min. frequency gap (f1): 2.2MHz separation Min. frequency gap (f2): 2.6MHz between

UMTS900 and the GSM900 of neighbour operator

Sandwich frequency solution is preferred

Sandwich frequency solution

Edge frequency solution



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16% less spectrum bandwidth needed for UMTS

4.2MHz for UMTS Tighter Frequency Reuse

Up to 44% less spectrum bandwidth needed for GSM

No Negative Impact to GSM

Sandwich & Buffer Zone

SingleRAN/ SDR

Reuse of Legacies Guarantee better coverage Maximize value of investment

Easy to maintenance Improve 2G/3G performance

2G Traffic Transfer Strategy Coverage/Load/Service Intersystem Balance Reduce CS block rate Improve data throughput

Huawei Refarming Solution highlights

RefarmingSolutions

1 2

3

45

6





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UMTS 900 Refarming RNP Procedure

UMTS900 frequency allocation Strategy

2G capacity Migration and G900 frequency re-plan

UMTS900 Dimension and Plan

Inter-RAT Operation design

GU antenna solution

End

Start

Refarming key points:

Interference Analysis among

UMTS900 & other Systems

Capacity Analysis to meet both

GSM & UMTS traffic requirement

GSM900 Frequency Planning

Inter-RAT Operation Solution

between GSM900 & UMTS900


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HUAWEI Confidential Page 18

2G Traffic Transfer Procedure

A>BA>B

User increasing

prediction

User increasing

prediction

B: Traffic

requirement

B: Traffic

requirement

A: Existing

Configured capacity

A: Existing

Configured capacity

2G Traffic transfer2G Traffic transfer

Frequency bandwidth

After Refarming

Frequency bandwidth

After Refarming

Required Frequency

reuse Density

Required Frequency

reuse Density

N

Reduce the

Configuration

Reduce the

Configuration

G900->G1800G900->G1800 G900->U900G900->U900

G900 TFR G900 TFR

Y

Meet Required

frequency reuse

density

Meet Required

frequency reuse

density

YNFinal G900 site

configuration

Final G900 site

configuration


2G traffic migration Strategy-1 （ G900->G1800)

Scenarios GSM 1800M is available and continuously covered;

GSM 1800M has rich frequency;

G900 and G1800 are deployed with Co-site

Migration Strategy Active HR, raise its proportion configured up to

50%~70% Transfer traffic from G900 to G1800 by add site configuration

depend on the required frequency reuse factor from 9~12 Increase 1800M sites co-sited with G900

GSM1800 GSM1800 GSM1800

GSM 900M GSM 900M GSM 900M

Better cell handover

Load balance handover

Coverage edge handover

Traffic sharing Strategy Camp on G1800 and G900 randomly in the idle state,

UE prefers to make the cell selection to G1800. Allow intra-frequency better cell handover; Load handover is performed according to the traffic


2G traffic migration Strategy-2 （ G900->U900)

Migration Strategy Active automatically the U900 service for all the existing 2G users Dual-mode terminal and 3G rate policies appeal to the transferred 2G user Voice traffic shared on UMTS900 shall be dimensioned, and the experience shall be good. Transfer traffic from G900 to UMTS900 with the above preconditions.

Traffic sharing Strategy Terminal camp on UMTS as long as it support G/U dual-mode Dual-mode UE camp on GSM in no UMTS coverage area Voice calls remain in individual RAT cells PS service on dual-mode UE shall perform Cell Reselection or HO if it enter into UMTS coverage area




UMTS 900M UMTS 900M UMTS 900M


Scenarios U900 is continuously covered;

There is no 1800 spectrum

G900 and U900 are deployed with co-site


UMTS Dimension Consideration

UMTS Voice Capacity Comparison

U2100R99+HSPA

F1 F1

U900 R99 +HSPA

F2 F2

U900R99+HSP

A

F1 F1

U2100R99+HSPA

F2

U2100 is continuously covered;

U900 is also continuously covered;

U900 is continuously covered;

U2100 is NOT continuously covered;

Suggested Strategy:

Randomly CampingWith loading Balancing

Suggested Strategy:

Force to camp on F1, With service delaminating


Migration Strategy Active HR, raise its proportion configured up to

50%~70% to reduce the existing G900 configuration Maintain the existing G900 configuration with the less

frequency The quality will deduce and Huawei TFR( tight frequency

reuse) solution will slower the trend




UMTS 900M UMTS 900M UMTS 900M


Scenarios There is no 1800 spectrum

The U900 service for the existing 2G users needs

special application

2G user’s will to migration is very low for the tough

Dual-mode terminal and 3G rate policies.

2G traffic migration Strategy-3 (G900 TFR)


Tighter Frequency Reuse solution for G900 capacity

S2/2/2S3/3/2

S4/3/3

S4/4/4

Enhanced ICC

Enhanced UISS

IBCA

AMR

IBCA

UISS (w/o GPS)

ICC/EICC

AMR

DTX Power control TFO

Anti-Interference

tech.

Industry FR LOAD 50% FR LOAD 70% FR LOAD 90%

4.8MHz Frequency Available

Bandwidth :4.8MHz@900M( 63~86) after reframing

BCCH layer : 63~76, TCH layer:77~86

AMR penetration:90%

Capacity target:: traffic increase 10%, HR 50%, Site Configuration shall be S444

Huawei TFR solution Case study:

E-ICC ： Spatial-Temporal Interference Cancellation CombiningUISS ： Um Interface Software SynchronizationIBCA ： Interference Based Channel Allocation

Site Type

featureDL Rx Qaul

(0-4) UL Rx Qaul (0-4)

call drop rate

Assignment succe

ss rate

Handover success rate

SD assig

n success rate

SDCCH

drop rate

SDCCH

Blocking rate

TCH Blocki

ng rate

S222DTX/PC/

AMR93.50%

94.00%

1.20%98.00

%95.50

%97.00

%1.00

%0.35% 1.50%

S332

DTX/PC/AMR

/EICC/TFO/UISS+IBCA

93.50%94.00

%1.50%

97.70%

94.80%

96.55%

1.15%

0.40% 1.00%

S444

DTX/PC/AMR

/EICC/TFO/UISS+IBCA

90.50%91.00

%2.00%

96.20%

93.00%

95.00%

1.70%

0.80% 1.00%


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Interference Type Between GSM and UMTS

Same Coverage Area

UMTS NodeB

GSM BS

UMTS UE

GSM UE

How to calculated the interferenceACIR represents the interference between GSM900 and UMTS900

Main interference introduceUMTS NodeB to GSM UE interference

GSM UE to UMTS NodeB interference

UMTS UE to GSM BTS interference

GSM BTS to UMTS UE interference

How to minimize the interferenceCarrier separation minimize interference caused by adjacent carrier between GSM900 and UMTS900;

Isolation distance minimize interference caused by same frequency between GSM900 and UMTS900.





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GU Network Level Performance loss from GU adjacent frequency

GU Frequency Gap

GSM Voice Call Drop increase

EDGE DL Throughput Loss

UMTS HSDPA Throughput Loss

UMTS DL R99 Capacity Loss (voice Sub.)

UMTS HSUPA Throughput Loss

UMTS UL Coverage Loss (Cell Radius)

Urban Rural Urban Rural Urban Rural Urban Rural Urban Rural Urban Rural

2.2MHz 0.00% 0.00% 0.00% 0.00% 0.83% 0.48% 0.43% 0.63% 0.89% 0.86% 1.63% 0.79%

2.4MHz 0.00% 0.00% 0.00% 0.00% 0.29% 0.14% 0.21% 0.52% 0.13% 0.15% 0.00% 0.00%

2.6MHz 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.02% 0.04% 0.04% 0.05% 0.00% 0.00%

UMTS 4.2MHz

GSMGSM

2.2MHz

GU Frequency Gap




UMTS DL R99 Capacity Loss (voice Sub.)




2.2MHz 0.00% 0.00% 0.00% 0.00% 2.48% 1.39% 1.28% 1.89% 2.66% 2.68% 5.01% 3.80%

2.4MHz 0.00% 0.00% 0.00% 0.00% 0.86% 0.43% 0.21% 0.52% 0.38% 0.46% 0.00% 0.00%

2.6MHz 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.02% 0.04% 0.13% 0.16% 0.00% 0.00%

4x3 frequency reuse for BCCHs, and 4x3 for TCHs

4x3 frequency reuse for BCCHs, and 1x3 for TCHs

GU900 Co-SiteUrban: ISD=750mRural: ISD=7500m





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4.2MHzGSMGSM

2.2MHz

The worst performance of worst cells are shown as follows:

GU Frequency Gap




UMTS DL R99 Capacity Loss (voice

Sub.)




2.2MHz 0.00% 0.00% 0.22% 0.00% 4.86% 4.70% 3.85% 5.68% 6.84% 6.65% 7.71% 5.31%

2.4MHz 0.00% 0.00% 0.00% 0.00% 2.58% 2.50% 1.62% 4.32% 0.76% 0.89% 0.90% 0.69%

2.6MHz 0.00% 0.00% 0.00% 0.00% 0.00% 0.00% 0.09% 0.10% 0.38% 0.49% 0.65% 0.64%

GU900 Co-SiteUrban: ISD=750mRural: ISD=7500m

Cell Level Performance loss from GU adjacent frequency


Adjacent frequencies plan consideration for G900

Frequency hopping, DTX & power control enabled for

TCH in adjacent carriers

GSM

2.6MHz frequency guard bandwidth between BCCH and

UMTS is recommended.

PDCH assign to adjacent carriers

adjacent channels

Adjacent carrier will be assigned to the U

nderlay of Concentric Cell

Both adjacent frequencies in the sandwich

schedule shall be not assigned in a cell.

carrier … … x y … …

Underlay

Overlay





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Buffer Zone: GU co-frequency interference guard

B area is the frequency isolation area, the frequencies of G900 is different from both A and C area

C area is corresponding to UMTS coverage.

UMTS sites

Buffer zone

GSM sites

A

B

C

A area is corresponding to GSM coverage.

Proposal for buffer zone plan:Buffer zone distance is commonly 2~3 layer sites or the distance of twice cell diameter,

RF optimization or obstructed topography will deduce the size of buffer zone

The co-frequency interference signal received in the A or C shall below -110dBm

HUAWEI buffer zone solution to solve the interference when UMTS900 sites and GSM900 sites are assigned the same frequency , but in different regions

GSM900

UMTS900 GSM900GSM900

GSM900GSM900

Spectrum allocation





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Buffer Zone Case Study

CASE: Optus, Australia

GSM900 Cell1

GSM900 Cell2

UMTS900 Cell0

Buffer Zone

Basic Info• Buffer zone locates at the edge of urban area• ISD: 5.5km

UE -> Node B Impact Node B -> UE Impact

RTWP Rise (dB) UE Interference Rise (dB)

Buffer Zone (one site) 0.1 0.3

No Buffer Zone 2.2 3.2

Achievement for Buffer Zone

• UL interference reduces 2.1 dB

• DL interference reduces about 3dB

GSM900 (Cell 2)

GSM900(Cell 1)

UMTS900 (Cell 0)GSM900

GSM900 (Cell 1)

GSM900





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UMTS UE Ec/Io Distribution compare

0

20

40

60

80

100

>=-8 >=-10 >=-12 >=-14 >=-16 >=-18 Ec/Io

Ec/Io

Pro

gres

sive

Stat

istic

%

No Isolation One Layer Isolation

Buffer zone Impact to Performance of GU sites

UMTS UE Ec/Io distribution compare

UMTS cell radius: 4Km;

GSM topology mode:4X3;

GSM MS C/I distribution compare GSM topology mode:4X3;

GSM UE C/I Distribution Compare(BCCH:4X3)

0%

20%

40%

60%

80%

100%

C/I>=9 C/I>=12

C/I

Pro

gres

sive

Sta

tistic

None Interference Tw o Layer Isolation One Layer Isolation

GSM UE C/I Distribution Compare(TCH:4X3)

0%

20%

40%

60%

80%

100%

C/I>=9 C/I>=12

C/I

Pro

gres

sive

Sta

tistic

None Interference Two Layer Isolation One Layer Isolation

The impact between Base Station and UE can be ignored with 2~3 layer isolation zone.

G900 Sites U900 Sites

One layer Isolation zone





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Case Study: 10MHz Spectrum for Refarming

Operator B

Example: Spectrum Assignment in 900MHz

V OperatorOperator C

10MHz

How to perform GSM and UMTS refarming?

?





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Case Study: Assignment of GSM TRX and UMTS Carrier

Operator B

UMTS GSM

V operatorOperator C

10MHz

4.6MHz bandwidth allocated for UMTS900

5.4MHz spectrum available for GSM900

4.6MHz

Sandwich Solution recommended.

No interference to neighboring operators.





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Case Study: Frequency Planning for VF Italy

Minimum 1 CH (200kHz) between UMTS900 and BCCH.

BCCH TCH UMTS900

15 channels

50 channels

23 channels10 channels 1 channel1 channel

TCH TCH

Operator B

BCCH

Operator C

U900

min. 2 CHs min. 1 CH min. 2 CHs

GSM frequency planning: SFH to spread the interference in the network.

15 channels for BCCH, 1 SFH group for all TCH, i.e. MA={CH1, CH2, CH3, …, CH12}.

2 CHs (1 TCH + 1 guard CH) between BCCH of V operator and UMTS900 of Operator C.

2 CHs (1 TCH + 1 guard CH) between UMTS of V operator and BCCH of Operator B.

Frequency Planning: 1+2+2+SFH

V operator


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Inter-RAT Operation Strategy 1--U900 for Rural coverage and U2100 for Urban coverage

Hot Spot & Dense Urban

UrbanSuburban & rural

UMTS2100

UMTS900

GSM900 GSM900

Coverage zone HSPA /R99

UMTS2100-UMTS900 inter-freq hard handover

UMTS900/GSM inter-RAT handover

UMTS2100 intra-freq soft handover

UMTS900 intra-freq soft handover



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Inter-RAT Operation Strategy 2--U900 for continuous coverage and U2100 for hot area capacity expansion

•The first phase of UMTS900 deployment will be mainly for coverage continuity and UMTS2100 absorb load in hot spot areas.

UMTS 900 Cell

GSM Cell GSM Cell GSM Cell

UMTS 900 Cell

UMTS 900 Cell

UMTS 2100 Cell

UMTS 2100UMTS

900

UMTS 2100

UMTS 2100

UMTS 900UMTS

900

UMTS 900UMTS

900

UMTS 900UMTS

900

Uni-directional Handover from UMTS 2100 cell to UMTS900 cell based on coverage

Uni-directional blind Handover from UMTS 2100 cell to UMTS900 cell based on load Users camp on UMTS 2100 layer

to establish R99 + HSDPA services

Continuous UMTS layer for coverage

• All UMTS layers provide R99+HSPA service

• Users camp on 2100 layer when available • According to the cell load the call will be e

stablished in 2100 layer or re-directed to 900 layer.

Uni-directional blind Handover from UMTS 900 cell to GSM900 cell based on load



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Mobility Management:Roaming strategy between GSM and UMTS

3G subscribers configured to camp on WCDMA network with the higher priority by choosing the UTRAN ACCESS TECHNOLOGY in the USIM file

3G subscribers configured to camp on WCDMA network with the higher priority by choosing the UTRAN ACCESS TECHNOLOGY in the USIM file

GSM

WCDMA WCDMA

UMTSGSMcell reselection

GSMUMTSPLMN or cell reselection

Cell reselection from UMTS to GSM networks via Inter-system Cell Reselection : No upgrade for GSM networks

Cell reselection from GSM to UMTS networks via Inter-system Cell Reselection: GSM BSS need to be upgraded to support SI2quater via PLMN/Access Technology Reselection: No upgrade for GSM networks



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Mobility Management:Inter-RAT handover between GSM and UMTS

CS

Services

Packet

Services

Camping on UMTS in idle mode Handover to 2G

Staying in 2G during the call

Call ends, Cell Reselection to 3G

Service begins…

Cell Reselection or cell Change Order to GPRS

Cell Reselection to UMTS

Cell Reselection to GPRS

UMTS cell

GSM/GPRS cell

Unidirectional handover from UMTS to GSM is proposed for CS services.

Bidirectional handover between UMTS and GSM by cell reselection is proposed for PS services

Note: No upgrade of GSM network for handover from 3G to 2G



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UMTS2100

Idle Mode RRC setup RAB setup Connected

UMTS900

GSM

SHO

SHO

Cell R

e-selection

RA

B D

RD

LD

R

RR

C D

RD

Inter-R

AT H

O

RR

C R

-Dir

DR

D to

GSM

RR

C R

-Dir

RA

B D

RD

LD

R

IFH

O

Summary for GU Mobility Startegy

Full flexibility for Traffic Management


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Contents of Antenna Solution

Case 1: Antenna Solution with Huawei SDR Product One Antenna is needed to support GSM and UMTS simultaneously.

Case 2: Sharing Existing GSM900 Antenna Co-antenna with SASUCo-antenna with 3dB combiner

Case 3: Independent Antenna for U900



颜色 : R153 G0 B0




颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


Case 1: Huawei SDR Product RRU3908

GU900GSM900

UMTS900 Rollout UMTS 900

Switch on

now

swap

GSM900 ModernizationWith SDR Module

UMTS900 Switch on

RRU3908

SDR

GSM900 G+U 900

RRU3908 Solution (1 RRU = GSM900 + UMTS900 modes)

BBU3900

Add UMTS Card

GSM900

BBU3900

Multi mode (GSM/UMTS) supported simultaneously in one module. The specifications of RRU3908 are fully Compliant with ETSI.



颜色 : R153 G0 B0




颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


Case 1: Huawei SDR Product MRFU

GU900GSM900


Switch on

now

swap


UMTS900 Switch on

BTS3900

GSM900 G+U 900

MRFU Solution (1 MRFU = GSM900 + UMTS900 mode)

Add MRFU modules

GSM900

MRFU

MRFU

MRFU

Software upgrade to UMTS900 Software upgrade to UMTS900 Max. 2*80W output power in one MRFU module 6 Carriers for GSM only, 4 Carriers for UMTS only For dual mode: UMTS 1C + GSM 1~5C, UMTS 2C + GSM 1~4C

Max. 2*80W output power in one MRFU module 6 Carriers for GSM only, 4 Carriers for UMTS only For dual mode: UMTS 1C + GSM 1~5C, UMTS 2C + GSM 1~4C

New-add: 3G 900M + 2G 900M

UMTS

UMTS

UMTS

G/U

G/U

G/U

Existing: 3G 2100M



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颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


Case 1: Huawei SDR Product MRFU

GU900GSM900


Switch on

now

swap


UMTS900 Switch on

BTS3900

GSM900 G+U 900

MRFU Solution (1 MRFU = GSM900 or UMTS900 mode)

Add MRFU modules

GSM900

MRFU

MRFU

MRFU

MRFU

MRFU

MRFU

MRFU

MRFU

MRFU

Software upgrade to UMTS900 Software upgrade to UMTS900 Max. 2*80W output power in one MRFU module 8 Carriers for GSM only, 8 Carriers for UMTS only

Max. 2*80W output power in one MRFU module 8 Carriers for GSM only, 8 Carriers for UMTS only

For Some European countries not supportin

g MSR



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颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


Case 1: Antenna solution with Huawei SDR Product

900MHz antenna

No change for antenna and

feeder system

GSM900 + UMTS900GSM900 + UMTS900

BTS3900BTS3900 DBS3900DBS3900

GSM900 + UMTS900GSM900 + UMTS900

MRFU

MRFU

MRFU

MRFU

MRFU

MRFU

1 Separate Antenna Solution

2 Co-feeder, co-antenna Solution

easy

Separate tilt & azimuth tuning for network optimizationHigh cost for adding new antennas & feedersSlow deployment for additional engineering

Op

tim

izat

ion

En

gin

eering

Fast deployment for easy engineeringLow cost for sharing the legacy devicesHigh difficulty for network optimization

difficult

difficult

easy

Multi mode (GSM/UMTS) supported

simultaneously in one module.

Only one antenna is needed to support GSM and UMTS.



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颜色 : R153 G0 B0

字体 : 黑体


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Case 2 ： Sharing Existing GSM900 Antenna

UMTS TXGSM&UMTS RXD

GSM TXGSM&UMTS RXM

3dB 3dB

TX/RXM RXD

GSM900 UMTS900

Co-antenna with SASU and SASA

Co-antenna with 3dB combiner

UMTS TXGSM&UMTS RXD

GSM TXGSM&UMTS

RXM

SASU

TX/RXM TX/RXD

GSM900 UMTS900

SASA



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颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


SASU: Same band Antenna Sharing Unit

SASU Characteristic: Solution for the shared antenna between GSM and UMTS system or between two UMTS systems on the same band. 6-port unit for antenna & feeder, 1 Tx port for GSM & UMTS respectively

SASU Advantage: No extra loss in the uplink Maximum 0.6dB insertion loss in the downlink No impact on frequency planning for GSM & UMTS

Install on the poleInstall on the wall



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颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


SASU Characteristic

6-port unit for antenna & feeder

sharing between GSM900 and UMTS900

1 Tx port for GSM & UMTS respectively

Huawei SASU for GU900 Co-antenna Solution

SASU Advantages No extra loss in the uplink

Maximum 0.6dB insertion loss in the downlink

No impact on frequency planning for GSM & UMTS

Install on the wall

Install on the poleSASU(Same band Antenna Sharing Unit)

SASU(Same band Antenna Sharing Unit)



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颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


SASA: Same band Antenna Sharing Adapter

SASA:Combine the TX carriers on two antennas into the carriers on one antenna, No affecting the performance of the existing GSM network. GSM_M

GSM_D

Principles of the SASA



颜色 : R153 G0 B0




颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


SASU Solution Helps to Retain GSM CoverageBest Co-Antenna Solution for Overlap Mode

U900Node B

G900BTS

combiner

antenna

combiner

Cable attenuatorCable attenuator

Traditional Combiner SASU Solution

antenna

U900Node B

G900BTS

SASU

Disadvantage of Combiner

3dB insertion loss (DL/UL) 30% coverage reduced Not support RET

New sites needed to retain existing GSM coverage

Advantage of SASU

negligible loss on UL < 0.6 dB loss on DL Support RET function (with 10dB Gain)

Negligible Impacts to GSM

(SASU: Same Antenna Sharing Unit)



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颜色 : R153 G0 B0

字体 : 黑体


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子目录 (2-5 级 ):18pt


Case 3: Independent Antenna for U900

Independent antenna

GSM900 UMTS900

In case of high configuration, 2 independent antennas can be used.



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颜色 : R153 G0 B0

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Additional Cost

Sites renegotiation•New antenna and pole

Slow the pace of site deployment

• Longer time to market

Additional equipment cost •New antenna•New pole•New feeder•New TMA

Limitation of evolution• lack of installation space for LTE/SAE

evolution

Disadvantage of Independent Antenna U900&G900

Additional installation cost •New antenna•New pole•New feeder

Additional maintenance cost •New antenna



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颜色 : R153 G0 B0

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Antenna Solution Summary

Solution Advantages Disadvantages

Independent antennaEasy to implement RF optimization

respectively.much additional cost needed

Co-antenna with SASU Save the installation space and cost for

antenna and feeder

1) 3G and 2G system can not adjust the down tilt angle and

azimuth independently;

2) downlink increase less than 0.6dB loss.

Co-antenna with 3dB

combiner

Save the installation space and cost for

antenna and feeder

1) 3G and 2G system can not adjust the down tilt angle and

azimuth independently;

2) downlink increase more than 3 dB loss.

Co-antenna

with GU mRRU/mRFU

1) save the space and cost of antennas

and feeders;

2) No insertion loss;

3) Easy RF tuning for 2G/3G co-coverage

objectives;

3G and 2G system can not adjust the down tilt angle and azimuth

independently;


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颜色 : R153 G0 B0

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• Co-Antenna Solution



Refarming Solution case study – S Operator

Network Information for Refarming Scenario :Suburban& Rural

G900 and G1800 and U2100 , total 45 Sites

Bandwidth : 9.8MHz(76-124) @900M,

23.8MHz (512-525, 647-751)@ 1800MHz

UMTS900 Refarming : 1 U900 carrier

Refarming Solution Swap and Refarming with Single RAN3.0 MRRU for G90

0/G1800&U900

Sandwich allocation, 4.2MHz of total 12.4MHz for UMTS

G900:76~89,111~124; U900:90~110

Traffic migration :GSM900-> GSM1800M UMTS 4.2MHz

GSMGSM

2.2MHz

89 110


Huawei frequency Refarming

URBAN

Channels: 64-124

Area to refarm : 4.2MhzChannels: 76 - 89 and 111 - 124

Zone de garde: Replan in 10Mhz

Channels: 76 - 124

Frequency re-plan area shall be separated in

to refarming area, buffer zone & RF optimizat

ion zone;

G900 cell BCCH shall has a frequency guard

over 2.6MHz with UMTS channel, available r

ange is 76 ～ 87 and 113 ～ 124 ， TCH of G

900 Co-sited with U900 shall not use the adja

cent frequenies(89,111), while TCH of separ

ate G900 site can use them.


Buffer Zone Frequency Planning

Sites in buffer zone

Sites in Refarming zone

Sites in RF optimization zone


Inter-RAT Operation Solution in Refarming Area

Adjacent cell relationship G900 Adjacent cells: D1800, U900(co-site),U2100 F0(no co-site),

U900 Adjacent cells:G900,,U2100 F0

U2100 F0 Adjacent cells: U2100 F1, U2100 F2, U900(GU co-site), G900(no co-site)

Mobile strategyIn idle state, bidirectional reselection between GSM and UMTS

In connection state, handover from UMTS to GSM, but not allowed from GSM to UMTS.


Intra-UMTS Multi- carrier Solution

Adjacent cell relationship G900 Adjacent cells: D1800, U900(co-site),U2100 F0(no co-site),

U900 Adjacent cells:G900, U2100 F0

U2100 F0 Adjacent cells: U2100 F1, U2100 F2 ( overlapped coverage cell ), U900(GU co-site), G900(no co-site)

Mobile strategyIn idle state, bidirectional reselection between U900

and U2100, Bidirectional handover based on coverage from UMTS2100 to UMTS900 is recommended

In only U2100 F0,F1,or F2 overlapped coverage area, UE camp on UMTS2100 F0 as preference.

U2100 F1 and F2 have higher priority for HSPA service than U2100 F0, and such service accessing to F0 will DRD to F1,F2.


Swap and Refarming flow - Refarming


Swap and Refarming flow - Swapping


Swap and Refarming flow - Swapping


Performance Overview- GSM CS

CS Traffi c

3000

3500

40004500

5000

5500

6000

6500

70007500

8000

8500

9000

Mon. Tues. Wed. Thurs. Fr i . Sat . Sun.

Erl

Bef ore Ref armi ng(NSN)

Af ter Ref armi ng&Bef oreSWAP(NSN)Af ter SWAP(HW)

（

Taux echec QoS Noki a 1- CSSR（）

0

0. 5

1

1. 5

2

2. 5

3

3. 5

4

4. 5

5


%


Af terRef armi ng&Bef ore(NSN)Af ter SWAP(HW)

Taux de coupure radi o(DCR）

0

0. 2

0. 4

0. 6

0. 8

1

1. 2

1. 4

1. 6

1. 8

2


%



SDCCH Drops

0

0. 5

1

1. 5

2

2. 5

3

3. 5


%




Performance Overview- GSM PS

% Out I nter BSC Handover Fai l ures wi th Bl ocks

0

2

4

6

8

10

12

14

Mon. Tues. Wed. Thurs. Fr i . Sat .

%



% I n I nter BSC Handover Fai l ures wi th Bl ocks

0

1

2

3

4

5

6

Mon. Tues. Wed. Thurs. Fr i . Sat .

%



% I n I ntar BSC Handover Fai l ures wi th Bl ocks

0

2

4

6

8

Mon. Tues. Wed. Thur s. Fr i . Sat .

%



% Out I ntar BSC Handover Fai l ures wi th Bl ocks

0

2

4

6

8

Mon. Tues. Wed. Thurs. Fri . Sat.

%





% EDGE Retransmi ssi on UL

0

2

4

6

8

10

Mon. Tues. Wed. Thurs. Fri . Sat. Sun.

%



% EDGE Retransmi ssi on DL

0

5

10

15

20


%



%TBFFAI LUL

0

5

10

15

20


%



%TBFFAI LDL

0

2

4

6

8

10


%





% MCS5_9

80

85

90

95

100


%



06.April 2006

HUAWEI TECHNOLOGIES CO., LTD.

www.huawei.com

Thank You

www.huawei.com

Documents

UMTS900 Refarming Deployment Strategy V1.0